Recurring Cracks

Topic: Recurring CracksMy house is undergoing maintenance ,I used Dr Fixit's CRack X to get ridding of crack on the plaster at the joint of RCC lintel and Brick wall and filled JK Wall Putty but surprisingly these cracks re occurred with a week,does any one have a solution.Lot of bloging sites (mainly from out of India) are recommending to put fiber mesh on crack and plaster with 43 grade cement and make grooves.Will this help in India as well ?

Dear AmarYou should go to gharexpert.com web site, in construction there is section of safety where in sub section of crack, if you go through it than find lot of article relating to your problem and much more about construction and interior.

Repair Cracks on face of plaster

When two components having different
elastic properties such as RCC slab and brick work abating each other,
the crack on face of plaster is formed between these components due to
their thermal expansion.

Remove plaster and old material

The plaster should be removed from cracked
portion. The joints should be widened at least 20 mm to 25 mm in
thickness. Clean old material by washing and brushing.

Apply cut and prepare the surface

Apply slight cut on edges in straight line
to provide neat joint. Make the surface damp 24 hours before
application of new plaster.

Apply cement mortar

Cement mortar should be applied on
defective portion. Make 20 mm wide and 25 mm thick groove at the
junction of two materials/components.

Do curing and finishing

Keep the surface wet at least for 3 days. When surface is dry, finish it according to adjacent area on wall.